Migrating Safari port to Safari App Extension
This issue is described in the GitHub issue tracker: #137.
@heychirag said:
Apple has come up with new platform called Safari App Extension. It's a native macOS app that can work as an extension to Safari and could also interact with the macOS itself. The benefit of this would be that we could list our app directly on the macOS app store instead of the Safari Extension Gallery. This could help in reaching out to more users. Also, some extra features (such as a menu bar preference pane) can be added since it would a native macOS app.
The official guide to build a Safari App Extension can be found here